-96.99% is the change from 266 to 8
Calculation steps:
[( 8 - 266 ) ÷ 266] x 100 = -96.99%
Formula
Percentage change = [(8 - 266) / 266] x 100
Subtract the new number by the original number
8 - 266 = -258
-258 ÷ 266 = -0.9699248120300752
-0.9699248120300752 x 100 = -96.99%